TABLE OF CONTENTS
GENERAL PHYSICS
I.
II.
III.
Molecule Microscopy
Scanning Desorption Molecule Microscopy (SDMM)
Scanning Micropipette Molecule Microscope (SMMM)
Developmental Electron Optics Laboratory
The Auger Electron Microscope
1
1
3
9
9
Semiconductor Surface Studies
Excitations at Surfaces and Interfaces of Solids
Surface and Defect Excitations in Covalently Bonded Solids
11
11
IV.
Photoemission Spectroscopy
13
V.
Atomic Resonance and Scattering
15
11
Studies of Rotational Energy Transfer
15
Level-to-Level Inelastic Differential Cross Sections
by Doppler Velocity Analysis
Spectroscopy of Weakly Bound Molecules
Collisional Line-Broadening Studies
18
20
21
VI.
Interfacial Chemistry
Photoacoustic Spectroscopy and Chemically Modified Surfaces
23
23
VII.
X-Ray Diffuse Scattering
Melting and the Commensurate-Incommensurate Transition
of Monolayer Krypton on Graphite
Melting of 1.2 Monolayer Xenon on Graphite
25
Structure, Phase Diagram and Transitions of Monolayer
and Bilayer Molecular Oxygen on Graphite
Nematic, Smectic A and Smectic C Phase Transitions and
Critical Behavior in 8S5-7S5 Mixtures
Structure of Well-Ordered Smectic Phases
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26
26
27
28
28
CONTENTS
VIII.
Quantum Electronics
Laser Applications
Ultrahigh-Resolution Spectroscopy and Frequency Standards
in the Microwave and FIR Regions Using Optical Lasers
Interaction of Phase-Modulated Laser Fields with Resonant
Systems
Phase Modulation Absorption Spectroscopy
Studies of Atom-Field Interactions in Atomic Beams
High-Resolution Studies in Folded Doppler-Broadened
Systems
Doppler-Free Spectroscopy via Resonant Degenerate
Four-Wave Mixing
Single-Frequency, Stimulated Brillouin Scattering
Fiber-Optic Laser
Measurement of Inertial Rotation Using a Passive-Ring
Resonator
Measurement of Inertial Rotation Using a Multiturn
Fiberoptic Sagnac Interferometer
Nonlinear Phenomena
Segmented-Contact GaAs/GaAlAs Double-Heterojunction
Laser Diodes
Picosecond Sampling
Devices for High-Rate Optical Communications
Grating Structures
Surface Acoustic Wave Gratings
IX.
Time-Resolved Spectroscopy of Condensed Matter
Microviscosity in Gels and Polymer Sols
Molecular Reorientation in Critical Mixtures
Time-Resolved Spectroscopy in Liquid Crystals
X.
Infrared Nonlinear Optics
Infrared Nonlinear Processes in Semiconductors
PR No. 123
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31
31
34
36
39
42
45
47
48
50
52
52
54
55
58
58
61
61
63
65
67
67
CONTENTS
XI.
Quantum Optics and Electronics
Nonlinear Optical Interaction in Semiconductors
Picosecond Dye Laser Optics
Nonlinear Spectroscopy of Atoms and Molecules
XII.
Microwave and Millimeter Wave Techniques
Research Objectives
XIII.
Microwave and Quantum Magnetics
Magnetostatic Modes Bound by DC H-Field Gradients
Optical Detection of Magnetostatic Resonances
Mode Synthesis
New Techniques to Guide and Control Magnetostatic Waves
Magnetostatic Wave-Dispersion Theory
Magnetoelastic Waves and Devices
69
69
70
71
73
73
75
76
78
79
82
85
86
XIV.
Microwave Thermography
87
XV.
Radio Astronomy
Microwave Spectroscopy of the Interstellar Medium
Research Objectives
Long-Baseline Astrometric Interferometer
89
89
Controlled Thin-Film Antenna
Improved Microwave Retrieval Techniques
Communications Satellites
Video-Bandwidth Compression Techniques
Scanning Multichannel Microwave Radiometer (SMMR)
TIROS-N Satellite Microwave Sounder
91
92
92
93
93
94
XVI.
Electromagnetic Wave Theory and Remote Sensing
Electromagnetic Waves
Remote Sensing with Electromagnetic Waves
Active and Passive Microwave Remote Sensing
PR No. 123
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91
95
95
96
96
CONTENTS
XVII.
XVIII.
Acoustic-Wave Propagation Studies
Effect of Earth Terrain on Millimeter Wave Propagation
Theories for Microwave Remote Sensing of Snow
97
97
98
SAR Image Prediction, Simulation, and Analysis
99
Electronic Properties of Intrinsic Defects in Amorphous
Silicon Dioxide
Photon Correlation Spectroscopy and Applications
Research Program
XIX.
Submicron Structure Fabrication and Research
Operation of Submicron Structures Laboratory
Development of Microfabrication Techniques
X-Ray Lenses and Gratings
Graphoepitaxy
103
105
105
107
107
109
110
One-Dimensional Conduction in Silicon
111
112
Reactive Ion Etching
112
PLASMA DYNAMICS
XX.
Plasma Dynamics
Basic Plasma Research
Nonlinear Wave Interactions
Renormalization Methods in Plasma Turbulence Theory
Intense Relativistic Electron Beams
Plasma Research Related to Fusion
Physics of Thermonuclear Plasmas
119
119
120
120
RF Heating and Nonlinear Waves in Toroidal Plasmas
Nonlinear Theory of Plasma Instabilities
123
Tokamak Research:
128
135
RF Heating and Current Drive
Mirror-Confined Plasmas
PR No. 123
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116
116
127
CONTENTS
COMMUNICATION SCIENCES AND ENGINEERING
XXI.
Optical Propagation and Communication
Improved Low-Visibility Communication
Fiber-Coupled External-Cavity Semiconductor High-Power Laser
Atmospheric Propagation Effects on Infrared Radars
XXII.
Digital Signal Processing
139
139
142
143
145
The Parabolic Wave Equation
Linear Shift-Invariant Form-Invariant Filtering
Event Compression with Recursive Least Squares Signal
Processing
Seismic Signal Modeling and Processing
148
149
A New Design of PCM Speech Coding System
150
151
152
Effect of Noise in Signal Reconstruction from Its Fourier
Transform Phase
Signal Reconstruction from Phase or Magnitude
Formation Parameter Estimation in Sonic Well Logging
153
154
155
Wavenumber Spectral Estimation
Time Delay Estimation of Multiple Arrivals
Two-Dimensional Maximum Entropy Power Spectrum Estimation
156
157
157
The Determination of the Acoustic Reflection Coefficient
of the Ocean Bottom from Its Response to a Point Source
Optimal Signal Enhancement and Parameter Estimation in
the Presence of Noise
Noise Reduction in Speech by Spectral Subtraction
Signal Noise Reduction
Importance of Phase in Speech Enhancement
158
159
159
160
160
XXIII.
Speech Communication
163
XXIV.
Linguistics
167
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CONTENTS
XXV.
Cognitive Information Processing
Natural Language Processing
Digital Wirephoto System
Data Processing for the Graphic Arts
Image Processing for the Graphic Arts
171
171
173
174
175
XXVI.
Custom Integrated Circuits
Conversion of Algorithms to Custom Integrated Circuits
177
177
XXVII.
Communications Biophysics
Signal Transmission in the Auditory System
Basic and Clinical Studies of the Auditory System
Auditory Psychophysics and Aids for the Deaf
179
179
179
Intensity Perception and Loudness
Binaural Hearing
Hearing Aid Research
Tactile Communication of Speech
Musical Pitch
Transduction Mechanisms in Hair Cell Organs
Mechanical Response Properties of the Basilar Papilla
in Alligator Lizard: Failure to Find a Basis for
Tonotopic Organization
Biomedical Engineering
XXVIII.
Neurophysiology
Basal Optic Projection in the Frog (Rana pipiens)
Old and New Directions in the Theory of Color Constancy
Tristimulus Spaces in Which Schroedinger Object Colors
Are Not Optimal
182
182
188
193
199
203
206
206
208
209
209
210
219
Publications and Reports
223
Personnel
247
Author Index
257
Research S-upport Index
260
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